ASIC miner comparison

BK-G28 (28GH/s) vs Gamma Duo 650 (1.63TH/s)

Compare pricing, hashrate, power draw, efficiency, ROI, and estimated hosted profitability before choosing your next mining setup.

BK-G28 (28GH/s)
VS
Gamma Duo 650 (1.63TH/s)
Higher hashrate
Gamma
Better efficiency
Gamma
Estimated net daily
Gamma
Hosted power rate
$0.060/kWh

Option 1

BK-G28 (28GH/s)

Ask availability
BK-G28 (28GH/s)
Price
N/A
ROI
N/A
Hashrate
28 GH/s
Net daily
-$1.77
Open product page

Option 2

Gamma Duo 650 (1.63TH/s)

Ask availability
Gamma Duo 650 (1.63TH/s)
Price
N/A
ROI
N/A
Hashrate
1.63 TH/s
Net daily
$0.01
Open product page

Gamma Duo 650 (1.63TH/s) leads this comparison

Gamma Duo 650 (1.63TH/s) comes out ahead on more buyer-facing signals here. BK-G28 (28GH/s) can still be the better fit when budget, availability, or a specific mining setup matters more.

BK
0
metric wins
Gamma
7
metric wins

Profit estimates use currently available product data and a hosted electricity rate of $0.060/kWh.

Technical comparison

Side-by-side mining, operating, and commercial specs.

FeatureBK-G28 (28GH/s)Gamma Duo 650 (1.63TH/s)Advantage
Brand
Baikal
Bitaxe
Contextual
Model
BK
Gamma
Contextual
Hashrate
28 GH/s
1.63 TH/s
Best
Gamma Duo 650 (1.63TH/s)
Power Consumption
1300W
26W
Best
Gamma Duo 650 (1.63TH/s)
Efficiency
46.43 J/GH
15.95 J/TH
Best
Gamma Duo 650 (1.63TH/s)
Daily energy use
31.2 kWh
0.6 kWh
Best
Gamma Duo 650 (1.63TH/s)
Net Daily Profit (Est.)
-$1.77
$0.01
Best
Gamma Duo 650 (1.63TH/s)
Monthly Profit (Est.)
-$53.16
$0.38
Best
Gamma Duo 650 (1.63TH/s)
Price
N/A
N/A
Contextual
Estimated ROI
N/A
N/A
Contextual
Cooling
AIR
AIR
Contextual
Dimensions
300 x 158 x 190 mm
10 x 5 x 12 mm
Contextual
Weight
6550 g
340 g
Best
Gamma Duo 650 (1.63TH/s)

Performance

Gamma Duo 650 (1.63TH/s) has the hashrate edge for raw output potential.

Efficiency

Gamma Duo 650 (1.63TH/s) is stronger when comparing joules per hash unit.

Buying decision

Check live stock, delivery schedule, and hosting capacity on the product page before placing an order.

Frequently asked questions

Which is more powerful: BK-G28 (28GH/s) or Gamma Duo 650 (1.63TH/s)?

Gamma Duo 650 (1.63TH/s) has a higher hashrate of 1.63 TH/s compared to BK-G28 (28GH/s)'s 28 GH/s.

Is BK-G28 (28GH/s) more efficient than Gamma Duo 650 (1.63TH/s)?

Gamma Duo 650 (1.63TH/s) is more energy efficient at 15.95 J/TH.

Which miner has the better estimated ROI?

Estimated ROI is not available because one of the miners is missing current pricing or profit data.

Every Day You Wait is Revenue You Lose

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